TiO_2纳米线/纳米粒复合光阳极的制备及其光电性能  

Preparation and photoelectric performance of TiO_2 nanowires/nanoparticles composite photoanodes

作　　者：靳闪闪[1] 李月英[1] 郭伟华[1] 郝洪顺[1] 高文元[1] 刘贵山[1] 

机构地区：[1]大连工业大学纺织与材料工程学院,辽宁大连116034

出　　处：《大连工业大学学报》2016年第2期135-139,共5页Journal of Dalian Polytechnic University

基　　金：辽宁省教育厅重大科技平台项目(2011-191);国家海洋食品工程技术研究中心开发基金资助项目(2012Fu125X03)

摘　　要：以P25TiO2为原料,采用水热法制备了TiO2纳米线/纳米粒(TNW/NP),用XRD和SEM对所制备样品的结构和形貌进行表征。探讨了不同水热反应时间对所制备的样品光阳极组装染料敏化太阳能电池(DSSCs)光电性能的影响。结果表明,水热反应时间为16h时,获得了TNW/NP共存的复合样品,其染料吸附量大,电子传输阻抗小,电子和空穴分离效率高;基于TNW/NP光阳极的DSSC光电性能最好,开路电压为0.75V,短路电流密度为6.22mA/cm2,填充因子为0.59,光电转换效率为2.75%。TiO2nanowires/nanoparticles（TNW/NP）with P25TiO2 as material have been prepared by hydro thermal method.The structure and morphology of the prepared samples were characterized by XRD and SEM.The impacts of reacting time on the photoelectric performance of dye-sensitized solar cells（DSSCs）based on as-prepared samples photo anode were explored.The results show that the TNW/NP composite sample was prepared successfully when the reacting time was 16 h.For TNW/NP,the dye adsorption amount was the largest,electronic transfer impedance was small and the separation efficiency of electrons-holes separation was high. The optimal photoelectric performance of DSSC were achieved based on TNW/NP photoanode,with open-circuit voltage of0.75 V,short-circuit current density of 6.22mA/cm2,fill factor of 0.59 and photoelectric conversion efficiency of 2.75%.

关 键 词：染料敏化太阳能电池 TiO2纳米线/纳米粒 水热反应 光电性能 

分 类 号：TM914.4[电气工程—电力电子与电力传动]